linux-kernel - [PATCH 08/21] tools lib traceevent: Introduce trace_seq_do

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Message-Id: <1423688955-8094-9-git-send-email-acme@kernel.org>
Date:	Wed, 11 Feb 2015 18:09:02 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Borislav Petkov <bp@...e.de>, David Ahern <dsahern@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH 08/21] tools lib traceevent: Introduce trace_seq_do_fprintf function

From: Arnaldo Carvalho de Melo <acme@...hat.com>

So that we can specify a FILE object where to direct the formatted
output.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Borislav Petkov <bp@...e.de>
Cc: David Ahern <dsahern@...il.com>
Cc: Don Zickus <dzickus@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/n/tip-a49bhdrx8851f04hppn8bqxq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/lib/traceevent/event-parse.h |  2 ++
 tools/lib/traceevent/trace-seq.c   | 13 +++++++++----
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 7a3873ff9a4f..5b4efc062320 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -22,6 +22,7 @@
 
 #include <stdbool.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <regex.h>
 #include <string.h>
 
@@ -91,6 +92,7 @@ extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
 
 extern void trace_seq_terminate(struct trace_seq *s);
 
+extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
 extern int trace_seq_do_printf(struct trace_seq *s);
 
 
diff --git a/tools/lib/traceevent/trace-seq.c b/tools/lib/traceevent/trace-seq.c
index ec3bd16a5488..292dc9f1d233 100644
--- a/tools/lib/traceevent/trace-seq.c
+++ b/tools/lib/traceevent/trace-seq.c
@@ -231,19 +231,24 @@ void trace_seq_terminate(struct trace_seq *s)
 	s->buffer[s->len] = 0;
 }
 
-int trace_seq_do_printf(struct trace_seq *s)
+int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp)
 {
 	TRACE_SEQ_CHECK(s);
 
 	switch (s->state) {
 	case TRACE_SEQ__GOOD:
-		return printf("%.*s", s->len, s->buffer);
+		return fprintf(fp, "%.*s", s->len, s->buffer);
 	case TRACE_SEQ__BUFFER_POISONED:
-		puts("Usage of trace_seq after it was destroyed");
+		fprintf(fp, "%s\n", "Usage of trace_seq after it was destroyed");
 		break;
 	case TRACE_SEQ__MEM_ALLOC_FAILED:
-		puts("Can't allocate trace_seq buffer memory");
+		fprintf(fp, "%s\n", "Can't allocate trace_seq buffer memory");
 		break;
 	}
 	return -1;
 }
+
+int trace_seq_do_printf(struct trace_seq *s)
+{
+	return trace_seq_do_fprintf(s, stdout);
+}
-- 
1.9.3

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